“…5 The most common etiologic factors leading to impactions are arch length discrepancy, the persistence of primary teeth, abnormal position of tooth seeds, alveolar fissure, ankylosis, cyst or neoplastic formation, root laceration, iatrogenesis and idiopathic conditions such as multifactorial sources. 6 Some authors have separated the etiological factors of canine impacted into three groups: local, systemic, and genetic factors. Among the local etiological factors, the ectopic position of the tooth seed can be considered the most important, apart from the discrepancy of arch length caused by lack of space and absence of eruptive guides, which is very common in cases of lateral incisor agenesis.…”